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    Climbers' CornerTree Academy

    How Research and Practice Has Changed the Way We Prune: An International View


    We review pruning strategies used world-wide on many temperate and tropical large shade tree species. Pruning practices appear to be based more upon culture and tradition of tree care in a region than on any other perceivable factor. Despite ANSI pruning standards (ANSI A300, part 1) methodology varies greatly from region to region, and from one town to the next within a region. Adoption of well-written specifications based on the ANSI standards can advance our professionalism by clarifying customer expectations. Research inspired by the ANSI standards comparing pruning methods, pruning practices, and pruning responses with the long view will be explained in light of improving structure and reducing risk. Changes in tree architecture accomplished over 20 years or more of structural pruning will show you how this system works on trees from across the globe. Perhaps what is most surprising is how little we know about the most often applied arboriculture practice—pruning.

    Conference Proceedings Documents


    Edward Gilman, Ph.D., University of Florida, Environmental Horticulture Department, Gainesville, Florida, United States

    Ed Gilman received his doctorate from Rutgers University. He has been on the faculty of the Environmental Horticulture Department at the University of Florida–Gainesville as professor since 1986. He teaches arboriculture and conducts research on planting and pruning. He is the author of six books on trees and landscape plants, many software programs, and websites that have received numerous awards. Gilman wrote An Illustrated Guide to Pruning, which is recently (2012) in its third edition. He is a past president of ISA’s Florida Chapter. He has received an Author’s Citation, an Award for Excellence in Arboricultural Education, and an Award for Arboricultural Research from ISA. Gilman has published more than 95 peer-reviewed journal articles in his 30 years in academia and industry.

    Climbers' CornerTree Academy

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